T4039B1008/U

Honeywell T4039B1008/U — T4039 thermostats control the line-voltage valves of fan coil units in cooling, manual changeover heating-cooling, or automatic changeover heating-cooling systems. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.

T4039 thermostats control the line voltage valves of fan coil units in cooling, manual changeover heating-cooling, or automatic changeover heating-cooling systems. One or two valves may be controlled directly by the thermostat. The fan switch (where applicable) controls air circulation. Features & Benefits: Manual fan control available Positive dead spot separates heating-cooling circuits in automatic models Scale range is approximately 55 to 95 °F (13 to 35 °C) in 10 °F (6 °C) increments from 75 °F (24 °C) midpoint Cooling circuit breaks in "FAN-OFF" position to reduce condensation problems in the fan coil unit Color-coded lead wires All models can be mounted on standard vertical outlet boxes. Models with manual switching can be mounted on 4-inch square junction boxes or 2-gang outlet boxes Adjustable range stops limit temperature adjustment or lock at selected setpoint Models available with separate power source for fan and thermostat Honeywell T4039B1008/U — T4039 thermostats control the line-voltage valves of fan coil units in cooling, manual changeover heating-cooling, or automatic changeover heating-cooling systems. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.

Brand	Honeywell
Lifecycle status	discontinued